Method generate

lib/css/CssGenerator.js:288–589

* Generates generated code for this runtime module. * @param {NormalModule} module module for which the code should be generated * @param {GenerateContext} generateContext context for generate * @returns {Source | null} generated code

(module, generateContext)

	 * @returns {Source | null} generated code
	 */
	generate(module, generateContext) {
		const exportType = /** @type {CssModule} */ (module).exportType || "link";
		const source =
			generateContext.type === JAVASCRIPT_TYPE && exportType === "link"
				? new ReplaceSource(new RawSource(""))
				: new ReplaceSource(/** @type {Source} */ (module.originalSource()));
		/** @type {InitFragment<GenerateContext>[]} */
		const initFragments = [];
		/** @type {CssData} */
		const cssData = {
			esModule: /** @type {boolean} */ (this._esModule),
			exports: new Map(),
			exportLocs: new Map()
		};

		this.sourceModule(module, initFragments, source, {
			...generateContext,
			cssData
		});

		switch (generateContext.type) {
			case JAVASCRIPT_TYPE: {
				const compilation = generateContext.runtimeTemplate.compilation;
				const devtool = compilation.options.devtool;
				const isCssModule = /** @type {CssModuleBuildMeta} */ (module.buildMeta)
					.isCssModule;

				const generateContentCode = () => {
					switch (exportType) {
						case "style": {
							const cssSource = this._renderCss(module, generateContext);
							if (!cssSource) return "";

							generateContext.runtimeRequirements.add(
								RuntimeGlobals.cssInjectStyle
							);

							const moduleId = generateContext.chunkGraph.getModuleId(module);

							if (generateContext.concatenationScope) {
								return new ConcatSource(
									`__webpack_css_styles__.push([${JSON.stringify(moduleId)}, `,
									this._cssToJsLiteral(cssSource, devtool, generateContext),
									"]);"
								);
							}

							return new ConcatSource(
								`${RuntimeGlobals.cssInjectStyle}(${JSON.stringify(
									moduleId
								)}, `,
								this._cssToJsLiteral(cssSource, devtool, generateContext),
								");"
							);
						}

						default:
							return "";